During the Qin Dynasty, he was in charge of the net.

Guided by the horn-shaped jade pendant, a strange, pale red gas detached from the Fire Spirit Jade Marrow and entered Li Ji's body through his mouth and nose.

As soon as this power entered Li Ji's meridians, it was like parched land receiving sweet rain, instantly coming back to life.

Moreover, this power was constantly nourishing Li Ji's dantian and strengthening his Ming Shui True Qi.

In less than half a quarter of an hour, Li Ji's condition instantly recovered, and the Ming Shui True Qi in his dantian was even stronger than when he first attacked his meridians.

Li Ji was puzzled, but he was too busy with the intense process of his meridians being impacted to investigate the outside world.

Without hesitation, Li Ji once again guided the Ming Shui True Qi in his dantian to launch a fierce attack on all the meridians in his body.

In an instant, a meridian was forcibly opened and widened. Although it contained subtle cracks, its toughness far exceeded that of before.

Meanwhile, outside, three more Fire Rain Agates, drawn by the horn-shaped jade pendant, had all their gas enter Li Ji's body.

With the help of these three forces, Li Ji broke through his meridians without any further obstacles.

The last pulse was successfully applied.

The true energy of the Netherworld surged through his meridians like a raging torrent, causing his sense of power to surge dramatically.

As the True Qi of the Dark Water circulated throughout the body and returned to the Dantian, the Seed of Dark Water deep within the Dantian seemed to have grown larger.

The color of the dark water true energy in his dantian, which resembled a lake, also became even deeper.

Originally, Li Ji's body was extremely hot from the molten lava, but now it felt incredibly cool.

The mist surrounding my body almost turned into water droplets, and the white mist that came out with each breath was even thicker.

During Li Ji's meridian breakthrough, the lava beneath him had already overflowed the stone chamber platform, coming within three feet of his feet.

However, Li Ji has not yet completed the third hurdle in the "Transforming the Serpent into a Dragon" technique.

The key to the third hurdle lies in condensing the true energy of the Netherworld in the dantian into a seed of Netherworld water, making it indistinguishable from the lake in the dantian.

It's like building a giant windmill in the middle of a lake, making the true energy of the Netherworld endless and turning it into a true source of power. This is also the key to mastering the Transformation of the Serpent into a Dragon Technique.

Once this stage is mastered, one can truly grasp the power of the Netherworld and embark on the path of transforming from a snake into a dragon.

However, this level requires an extremely strong and focused mind and concentration.

One must manipulate each wisp of the Netherworld Qi with the utmost precision, as if it were an extension of one's own arm, making it flow smoothly, separate and combine at will, and condense and disperse freely.

If one cannot reach this level, the power of the Netherworld in the dantian will backfire on oneself.

At best, all efforts will be wasted and all power lost. At worst, the dantian will be destroyed and the meridians will rupture.

Therefore, the third pass is also the most difficult, and most of the Mingshui people fail at this pass.

They may not have strong enough mental fortitude to maintain high-intensity control over the Netherworld Qi for an extended period.

Or perhaps their mind wasn't focused enough, and they lost their composure under the immense power of the Seed of the Dark Water.

Or perhaps they lack sufficient understanding of the power of the Netherworld, making it impossible for them to achieve subtle mental focus and the ability to control their inner energy as easily as their own arms.

As for Li Ji, he no longer had time to control the Mingshui True Qi and complete the third barrier.

The lava was only a foot away from him and could engulf him at any moment.

Although Li Ji had already passed two checkpoints, he would still be reduced to ashes in the face of this scorching lava.

Even if a member of the Mingshui tribe had already passed the first two checkpoints, they would still feel flustered and agitated when faced with the lava so close at hand, and might fail due to a loss of composure.

But Li Ji didn't. He didn't even stop to rest after passing the second checkpoint.

He suddenly discovered that the heavy and uncontrollable Netherworld True Qi described in the secret technique records could be easily controlled by his mind, as if it were a toy.

Little did he know that his mental strength, honed through two lifetimes, far surpassed that of ordinary people.

Meanwhile, his ten years as a Luo Wang assassin, filled with life-and-death battles and the tempering of time, made his will far more refined, powerful, and focused than ordinary people could imagine.

The third pass, which was an insurmountable barrier for the Mingshui people, seemed like a natural outcome for Li Ji.

Under Li Ji's powerful mental state, he could instantly sense every wisp of surging Ming Shui True Qi within his dantian and discern its flow trajectory.

He easily transformed the wisps of Netherworld True Qi into a simple Netherworld Core, ignoring its initial violent impact, his mind as calm as a deep well.

Under the polishing of countless strands of Netherworld True Qi, the newly formed Netherworld Core gradually transformed into a profound Netherworld Seed, imbued with boundless vitality.

When this seed of the Netherworld, carrying a hint of chill and an ancient aura, was dissolved into the dantian lake like a seed.

The purest and most refined Netherworld Qi instantly became like a docile lamb, flowing smoothly and evenly through the broad and resilient meridians and dantian lake, without any trace of wildness or loss of control.

The third barrier that had troubled so many Mingshui people was easily passed by Li Ji, taking less than half a quarter of an hour.

If any members of the Mingshui tribe were to witness this scene, they would likely be startled and jump up even though they are already in the tomb.

The moment the three passes were breached, Li Ji underwent a complete transformation.

His cold and melancholic temperament was completely suppressed, transforming into an unfathomable composure and sense of control.

His gaze was deep and calm, with a faint blue light emanating from it as it opened and closed, carrying the majesty of an ancient ferocious beast that made people's hearts tremble.

His breathing became calm and long, and there was no longer any white mist between his mouth and nose, but the air around him was unusually moist and fresh, and being near him felt like being in a small body of water.

At the same time, his skin became as smooth and lustrous as jade, like a newborn baby, with a slender figure like a dragon or a tiger, and a head of black hair hanging down to his waist, making him look more like a royal prince than an assassin.

Looking at the rolling molten lava beneath his feet, Li Ji's mind stirred slightly, and his body was instantly covered with a layer of dark blue protective true energy as thin as a cicada's wing and flowing with mysterious water patterns.

Under this layer of dark blue protective true energy, the molten lava that could melt gold and iron could not harm Li Ji in the slightest.

With a thought, Li Ji casually conjured stable water arrows, water blades, and even small water tornadoes at his fingertips.

He then unleashed a water arrow or blade, leaving a deep scratch on the stone wall, its power even greater than his previous sword energy.

These water arrows and water blades are formed by drawing upon the surrounding water vapor through the seed of the Netherworld within the body, requiring almost no physical exertion.

In fact, this power not only exceeded the sword energy he had previously unleashed by expending his internal energy, but also far surpassed ordinary Baiyue secret techniques.

At this moment, Li Ji noticed the scattered fire rain agates around him, as well as the slight anomaly of the heart-shaped jade pendant.

From Li Ji's perspective, the horn-shaped jade pendant, which used to be as warm and lustrous as jade, now seemed a little dull. Combined with the sudden appearance of the fire rain agate, Li Ji guessed that perhaps the horn-shaped jade pendant had helped him once again.

Unable to determine the specifics, Li Ji collected all five scattered Fire Rain Agates.

Upon observation, he discovered that one of the gems was exceptionally beautiful, but it seemed to have lost its charm, appearing dull and lifeless, and had become an ordinary gemstone.

The other four are basically the same, except for one that still has most of its fiery red color remaining, which may still be usable.

Li Ji carefully put away the five Fire Rain Agates. He hadn't forgotten that his mission this time was to collect Fire Rain Agates and the Baiyue Secret Techniques. He would use these Fire Rain Agates to hand over to the leader of the Luo Wang organization later.

Right now, what Li Ji needs to do is leave this circular secret chamber.

Although he was protected by the true energy of the Netherworld Water, which prevented the surrounding magma from harming him in the slightest, he did not know how to leave the circular chamber for the time being.